The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2023
Filed:
Jun. 02, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Apparatuses and techniques are described for detecting and compensating for a set of memory cells having a slow program speed, based on a comparison between the number of program loops used to complete programming for different data states. A program loop (PL) number is stored when programming is completed for memory cells of each assigned data state. The PL number of an nth state is then compared to the PL number of another state such as the n−1st state. If the difference between the PL numbers exceeds a threshold, the set of memory cells is considered to be slow programming and a compensation is triggered. The compensation can involve increasing the program pulse width in each remaining program pulse of the program operation. In another approach, the compensation can be triggered and subsequently deactivated in the program operation.